# C++ Object-Oriented Modular Refactoring Build/Test Report

## Metadata

- owner_agent: `implementation-agent`
- feature_id: `cpp-object-oriented-modular-refactoring`
- report_status: `passed`
- date: `2026-08-16`
- workspace: `C:\git\FESADev\.worktrees\cpp-object-oriented-modular-refactoring`
- branch: `feat-cpp-object-oriented-modular-refactoring`
- head: `f84ebb541f4717ab8300cf0d80497e1277d3bb48`
- `.harness/config.json`: absent; Harness/CMake defaults and Step 24 explicit commands used
- build generator: `Visual Studio 18 2026`
- platform/configuration: `x64` / `Debug`
- compiler observed by configure: `MSVC 19.51.36252.0`
- inherited environment note: `FESA_HARNESS_CODEX_SANDBOX=danger-full-access`

## Execution environment

Required dependency paths all existed:

| Path | Status |
| --- | --- |
| `C:/git/googletest` | found |
| `C:/Program Files (x86)/Intel/oneAPI/mkl/2026.1/lib/cmake/mkl` | found |
| `C:/Program Files (x86)/Intel/oneAPI/tbb/2023.1/lib/cmake/tbb` | found |
| `C:/Program Files/HDF_Group/HDF5/2.1.1/cmake` | found |

LLVM tools:

- `clang-format version 22.1.8`
- `clang-tidy LLVM version 22.1.8`
- `clang-tidy --verify-config`: `No config errors detected.`

## Command log summary

| Command | Exit | Duration | Output tail / result |
| --- | ---: | ---: | --- |
| `uv run --with pytest python -m pytest -v -rs` | 1 | 2.700s | 20 passed, 1 failed: `test_invoke_codex_uses_utf8_for_unicode_prompt` saw inherited sandbox override `danger-full-access` instead of default `workspace-write`. Classified as environment-specific diagnostic, not product failure. |
| Clean child process without `FESA_HARNESS_CODEX_SANDBOX`; `uv run --with pytest python -m pytest -v -rs` | 0 | 0.751s | `21 passed in 0.13s`. |
| `clang-format --dry-run --Werror` over `@(rg --files include src tests -g "*.h" -g "*.cpp")` | 1 | 0.892s | Reported four formatting findings in `src/fesa/math/sparse_matrix.cpp`, `tests/unit/math/sparse_matrix_test.cpp`, `tests/unit/solvers/linear/linear_solver_test.cpp`, `tests/unit/solvers/linear/mkl_pardiso_solver_test.cpp`. |
| `clang-format -i` on the four reported files | 0 | tool wall 0.5s | Normalized formatting/stat state; `git diff --raw` and `git diff --numstat` remained empty for those files. |
| `clang-format --dry-run --Werror` over 163 C++ files | 0 | 0.888s | `CPP_FILE_COUNT: 163`; no violations. |
| `clang-tidy --config-file=.clang-tidy <publicHeader> -- -x c++ -std=c++17 -Iinclude` | 0 | 41.822s | `PUBLIC_HEADER_COUNT: 46`; 45 diagnostics were required trailing-underscore header guards and two were `const` parameter classifications; zero other naming diagnostics. |
| Read-only production Doxygen/header-guard and test-tag scan | 0 | 0.302s | 63 production headers, 0 missing guards, 0 missing Doxygen-contract headers, and 0 test files with imposed Doxygen tags. |
| `.hpp` scan under `include src tests` | 0 | 0.162s | `LEGACY_HPP_COUNT: 0`; `rg` returned 1 for empty result but count-based AC passed. |
| Required dependency path check | 0 | 0.165s | All four declared dependency paths found. |
| `cmake --fresh -S . -B .harness/build -G "Visual Studio 18 2026" -A x64 "-DFESA_GTEST_SOURCE_DIR=C:/git/googletest" "-DMKL_DIR=C:/Program Files (x86)/Intel/oneAPI/mkl/2026.1/lib/cmake/mkl" "-DTBB_DIR=C:/Program Files (x86)/Intel/oneAPI/tbb/2023.1/lib/cmake/tbb" "-DHDF5_DIR=C:/Program Files/HDF_Group/HDF5/2.1.1/cmake"` | 0 | 6.204s | Configure/generate complete; MKL 2026.1.0 found; build files written to `.harness/build`. |
| `cmake --build .harness/build --config Debug --target fesa_tests` | 0 | 9.639s | `fesa_solver.lib`, `fesa_integration_tests.exe`, `fesa_reference_tests.exe`, and `fesa_unit_tests.exe` built. |
| `ctest --test-dir .harness/build -C Debug --show-only=json-v1` | 0 | 0.235s | `DISCOVERED_TEST_COUNT: 206`. |
| `ctest --test-dir .harness/build -C Debug --output-on-failure` | 0 | 9.908s | `100% tests passed out of 206`; labels: unit 182, integration 11, reference 13. |
| `ctest --test-dir .harness/build -C Debug -R "B33ReferenceComparison|Mitc4S4Reference" --output-on-failure` | 0 | 1.260s | `100% tests passed out of 3`. |
| `git diff --check` | 0 | 0.199s | `<no whitespace errors>`. |

## Validation results

| Validation | Result |
| --- | --- |
| Harness Python/policy tests | Pass in clean child process: 21/21. |
| LLVM tool availability/config | Pass. |
| clang-format repository dry-run | Pass: 163 files. |
| clang-tidy selected public-header check | Pass: 46 headers, exit 0, zero naming diagnostics outside the two documented contract exceptions. |
| Production Doxygen/header-guard policy | Pass: 63/63 headers; tests contain no imposed Doxygen boilerplate tags. |
| Header extension policy | Pass: 0 `.hpp` under `include`, `src`, `tests`. |
| Fresh MSVC x64 Debug configure | Pass. |
| MSVC x64 Debug build | Pass: `fesa_tests`. |
| CTest discovery | Pass: 206 tests. |
| Full CTest | Pass: 206/206. |
| Approved reference suites | Pass: 3/3. |
| Reference tree no-change | Pass before and after compare: `git diff --exit-code 1e5758f -- reference` exit 0. |

## Failure classification and failed test inventory

Blocking classification: `none`.

Nonblocking diagnostics:

- `environment`: inherited `FESA_HARNESS_CODEX_SANDBOX=danger-full-access` caused the raw pytest command to fail one default-sandbox test. The same pytest command passed 21/21 in a child process with only that override removed.
- `style`: initial clang-format dry-run reported four whitespace/line-ending findings. Formatting normalization introduced no tracked source-content diff, and the rerun passed.
- `static-policy`: clang-tidy reported header-guard trailing underscores and two
  `const` parameters because its generic macro/constant categories differ from the
  higher-priority FESA guard and parameter conventions. It reported no other naming
  diagnostics, and the required command exited 0.

Failed blocking tests after clean verification: none.

## Handoff recommendation

Proceed to Physics Evaluation Agent. Build/test evidence is sufficient for the final
Implementation-owned gate; no compile, link, test, reference-comparison, or
environment blocker remains.

## No-change assertion

No production behavior, reference artifact, reference tolerance, comparator contract,
or generated Doxygen output was changed in Step 24.

## Open issues

None blocking.